OK WASH i: \<;T<>.\, VOLTMH xvi, nut 



citri Moulton, the orange thrips, belongs in the genus Sdrtothrips 

 Shull (1909). This genus \v;is compared at tlie time of its original 

 description with Anaphothrips l'/el, to which, however, it is not ai 

 all closely related. The most casual observation under high mau- 

 nificatlon shows the thorax of all the known species to be finely 

 and closely transversely striate and the abdomen lo be clothed 

 more or less completely with minute, hair-like, chitinous processes. 

 These characters ally it rather closely to Scricnthrip* Ilaliday, from 

 which it differs notably in the more ^parsely spinose anterior vein 

 of the fore wing. As in Sen'co/hrip*, the species are active jumpers, 

 and in life or when mounted dry have a dull, silky luster. To 

 Sdrtothrips, therefore, in addition to the type species rnlhwin 

 Shull and S. nJrcn* Hood, musl be assigned Eiitlin'px cilri Moult on 

 (the orange thrips), Eidhripx lonyipcnn-ix Bagnall (=Eutliripx 

 jxifTKN Moulton), Anaphothrips o//m.s Jones, and a sixth species 

 whose description by the writer will probably appear elsewhere 

 before the publication of the present paper. 



Thirteen additional species, all but two of which were described 

 in Euthrrps by American authors, really belong with Franklini'i'llu 

 xti/losa Hood in the genus F mulct in fella Karny (1910), which wa- 

 erected at the instance of Franklin (1908) as a substitute for I'hi/- 

 sapus, Karny (nee Amyot et Serville). As the type of this genus 

 has never been fixed, I hereby designate Thrip* inton.^i. Try bom 

 ( = J>hi/N<>puN vulgatissima, Uzel, nee Haliday) as the genotype. 

 The North American species belonging here are enumerated in 

 the catalogue below. 



The five remaining species (Etd/irip* nllmx, E. ehrhormi, and 

 E. nrchit-lfi, Moulton; and E. covt'il/* and E. longirostrum, Jones 

 may all be placed for the present at least, in rfiiixntlirip* Karny 

 (1912). Only one of these, Enlhripx orclif'lii Mouhon. is in the 

 material before me: ii seems to be congeneric with Physothrips nhnf- 

 folioruni ( Haliday), the typ(> of genus. 



CATALOG! K. 



No attempt has been made to cite every reference to the several 

 species, only those being given which are of especial interest to the 

 taxonomist. 



FKA.VKU \i KI.I. \ Karny, 1910. 



ri/>x, niict. 



I<'rit>ilcli.nicll<i Karny, .Mittcil. Xatunv. Ver. Univ. \Vicn. .laliri:. \lll.p. 

 46 (type. Tlin'itx intonxu Trylmm. = I'lti/so/m* ri/l<i<ilix*ini<i. \'/.<-\. 

 ncc Haliday, herein designated). 



1. bispinosn (^Morgan); Knlhri/>x Iriliri v:ir. /M'X/I//M/.V/X Mm-uan. 1'roc. 

 I". S. Nat. Mus., vol. Id. I'.ii:!. p. 10. figs. 17 18. 



